ok so ive had a 4x2TB(samsung HD204UI w/firmware patch) raid5 array working normally for about a month.

It was in a h57 gigabyte motherboard using the intel raid with Windows 7 x64.

Today I got an intel h67 motherboard, so I upgraded the intel raid drivers to 10.1.0.1008 from 9.6.0.1014, and I'm not sure if i checked after a reboot, but it caused no problems. I swapped in the new dh67 motherboard, and my array status was "failed". 2 of the 4 drives listed themselves as members, while the other two drives listed themselves as non-members. I tried going back to the old h57 mobo, and downgrading the raid drivers, but the issue remains. It's not port dependent, 2 of the drives always come up as non-members regardless of what port or motherboard they are plugged into.

This screenshot should show that the SNs match, which raises the question why the software doesn't realize the drive is a member of the array.

I'd like to know if anyone has experienced anything similar, and what should I do, can I force the drive to be recognized as a member (without wiping data)?